Improvement in trip-hammers



J. O. BUTTERPIELD & J. HAY. TRIP HAMMER.

No. 108,326. Patented 001;. 18, 1870.

waited st-mg gem Gtfiliw.

' Letters Patent No. 108,326,.datcd October 18, 1870.

IMPROVEMENT IN T IP-Mainline.

The Schedule referred to in these Letters Patent making part of the lam.

To all whom it may concern.-

Be it known that we, J 01m 0. Bu'rmnrmm and JAMES -HAY, of Chicago, in the county of Cook and State of Illinois, have invented an improved Trip- Hammer; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and I use the same, reference being bad to the accompanying drawing and letters'marked thereon, making a part of this specification, in which- Figure 1 is a perspective representation of our im-. proved trip-hammer,-

Figures 2 and 3- letached views of the adjustable eccentric.

The nature of the present invention consists in the novel construction of an oscillating carriage, in combination with the hammer, beam, and springs, whereby the vibrations of the hammer-beam are prevented from communicating wit the'fi'ame, so as to produce breaking, trembling, or arring of the parts; and in the combination of an adjustable sleeve and eccen- -trie,' whereby any length of.. stroke is obtained, as the whole is hereinafter fully-described.

L, fig. 1, represents a substantial iron frame, supported by any suitable foundation, A A, and which supports two upright standards, g, and an anvil, M N. An oscillating iron frame,-D, is provided with a shaft, F, which rotates in standards g; with sockets for the bottom ends of rubber springs J C to rest in; with a clamp, 11 d, for holding the hammer-beam H; and with a pivot, Q, for attaching the upper end of the crank It U,, the under side of the aforesaid beam beingprovided with sockets, I A, which support the top ends of the springs J C, so that the latter are held firmly between the frame D and hammer-beam H, said springs being adjusted by means of setserews, a a.

A shaflaa, fig. 1, is made to rotate in bearings formed in the frame'L by means of a pulley, K, and

it is provided with an adjustable eccentric, VY. shown more clearly at figs. 2, 3, by means of which any length of hammer-strokemay be obtained.

Theheight of the hammer, to suit the thioknese'of metal placed on anvil N, is gauged by means-of a sleeve-nut, It, on the inner periphery of which are, out right and left-hand threads, so that, when the not B is turned,the;dist1nce between the shaft 11. and

pivot Q is increased or diminished. Hence, different thicknesses of metal; can be readily wrought.

' To adjustt'he eccentric, all that is required is to.

simply loosen the nuts S S, at fig. 3, andthen move the eccentric on shaft 10, at the same timethe. plate V is swung around so as to change position of the belts in the slots T 1.

Having thus described our invent-ion,

What we a claim, and desire to secure by Letters Patent of the United States, is-

1. The oscillating'frame D, provided with sockets G B, in combination with rubber springJ C,-clamp b d, beam H provided with sockets I A, and hammer P, as and for the purpose setforth. U

2; Combination of. frame L, standard 9, eccentrics V Y, sleeve-crank R U, and flame D, as and for the purpose set forth.

3. Combination, with-subject-matter of first claim,

of the sleevemrank B U, eccentrics V Y, shaflin, frame L, standard g, and anvil M N, as and for the purpose set forth. V

JOHN C. BUTTERFIELD. JAMES HAY.

I \Vitnesses:

G. L. GHAPIN, E. E. Gmsoiv. 

